/* flex布局 */
.u-f,.u-f-ac,.u-f-ajc{
	display: flex;
}
.u-f-ac,.u-f-ajc{
	align-items: center;
}
.u-f-ajc{
	justify-content: center;
}
.u-f-jsb{
	justify-content: space-between;
}
.u-f1{
	flex: 1; /*各占一份*/
}
.u-f-column{
	flex-direction: column; /*flex方向 从上到下垂直方向排列*/
}